Erwin Czech
9Patents
6h-index
23Co-inventors
59Inventor score
Filing activity: Dec 1, 1986 → Nov 15, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4912006A | Electrostatic toner | Physics | 15 | Expired |
| US5891227A | Aqueous dye preparations | Chemistry; Metallurgy | 11 | Expired |
| US4925762A | Carrier for reprography and production of this carrier | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4803143A | Colored single-component toners and their preparation | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5496674A | Particles suitable as carriers for electrophotography | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5039587A | Oxide-coated carriers and preparation and use thereof | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6242052A | Triboelectric chargeable coating powder | Chemistry; Metallurgy | 1 | Expired |
| US5512264A | Finely divided blue molybdenum oxide | Chemistry; Metallurgy | 1 | Expired |
| US5814139A | Ballpoint pen pastes with phthalocyanine pigments | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.